基于改进风险图的安全完整性等级确定方法  

The study of safety integrity level determination methods based on improved risk graph

作　　者：李荣强[1] 姜巍巍[1] 曹德舜[1] 

机构地区：[1]中国石油化工股份有限公司青岛安全工程研究院,山东青岛266071

出　　处：《计算机与应用化学》2014年第3期382-384,共3页Computers and Applied Chemistry

摘　　要：国际功能安全标准IEC61508/61511中介绍了几种安全完整性等级(Safety Integrity Level,SIL)确定方法,但是将这些方法运用实践中时会遇到一些困难。为克服上述方法的不足,本文介绍了1种半定量的风险分析方法—改进的风险图法,以确定识别到的安全仪表功能(Safety Insumented Function,SIF)的安全完整性等级。International functional safety standard IEC 61508/61511 introduced several safety integrity level determination methods. However, significant problems are encountered when putting this approach into practice. In order to overcome the inadequacies of the above methods, This paper describes a semi-quantitative risk analysis methods Improved Risk Graph, to determine the Safety Integrity Level of the identified safety instrumented function.

关 键 词：安全完整性等级 安全仪表系统 安全仪表功能 风险图 

分 类 号：X937[环境科学与工程—安全科学]